P3D V4 Dynamic Lighting FPS problem

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Hello, I don't think I am the only one with this problem, but I am having a terrible time with P3D dynamic lighting. My FPS goes down to 7. Is Lockheed looking into this? Dynamic lighting is so beautiful but I can't use it because it cripples my system!!!! Is there anything I can do to help it?

Thoughts?

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Hello, I don't think I am the only one with this problem, but I am having a terrible time with P3D dynamic lighting. My FPS goes down to 7. Is Lockheed looking into this? Dynamic lighting is so beautiful but I can't use it because it cripples my system!!!! Is there anything I can do to help it?

Thoughts?

Lowering the AA settings removed any FPS hit, hopefully it works for you.

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Lowering it in P3D settings or in my Inspector Settings? Lowering them in the sim did nothing for me.

Try MSAA. At night using high SSAA will be a fps cruncher. I'd suggest 8XMSAA to get nice smooth graphics without the big frame hit you get with supersampling. Also any 4XSSAA and above gives a huge GPU load. If you are going to use SS then 2XSSAA would be the max.

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Try MSAA. At night using high SSAA will be a fps cruncher. I'd suggest 8XMSAA to get nice smooth graphics without the big frame hit you get with supersampling. Also any 4XSSAA and above gives a huge GPU load. If you are going to use SS then 2XSSAA would be the max.

Ill experiment with this but if you are talking in the sim I literally tried everything and nothing helped. I was using FSDT's new KCLT and FB KMSP and those dynamic lights just cripple my system

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Ill experiment with this but if you are talking in the sim I literally tried everything and nothing helped. I was using FSDT's new KCLT and FB KMSP and those dynamic lights just cripple my system

In the sim. What kind of system do you have? If you use a demanding plane such as TFDi's 717 in a big payware airport, at NIGHT I monitored the fps and load on the GPU and supersampling is a killer with dynamic lighting anything above 2x. In the daytime I found this less of an issue though 4X SS and above is a GPU hog.

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In the sim. What kind of system do you have? If you use a demanding plane such as TFDi's 717 in a big payware airport, at NIGHT I monitored the fps and load on the GPU and supersampling is a killer with dynamic lighting anything above 2x. In the daytime I found this less of an issue though 4X SS and above is a GPU hog.

I appreciate your help. I would say I have an "older system" for today's standards, but its a medium system. I have a GTX 580 and In i5 2500 K. My system is going on about 6 years old so maybe it's just my system?

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I appreciate your help. I would say I have an "older system" for today's standards, but its a medium system. I have a GTX 580 and In i5 2500 K. My system is going on about 6 years old so maybe it's just my system?

Yep.

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Try MSAA. At night using high SSAA will be a fps cruncher. I'd suggest 8XMSAA to get nice smooth graphics without the big frame hit you get with supersampling. Also any 4XSSAA and above gives a huge GPU load. If you are going to use SS then 2XSSAA would be the max.

Really wish I could use MSAA. I need at least 4xSSAA to stop this weird "shimmer" effect on vegetation and buildings to some extend It's not aliasing, almost looks like a mildly flickering heat shimmer effect and it's so jarring to look at.

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It has been mentioned that the problem of DL/AA strongly depends from the add-on airport in use. Airports which have been compiled/exported with P3Dv4-SDK should have a much smaller impact on frame rate than others which were simple port-overs by adapting the installer for v4.

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It has been mentioned that the problem of DL/AA strongly depends from the add-on airport in use. Airports which have been compiled/exported with P3Dv4-SDK should have a much smaller impact on frame rate than others which were simple port-overs by adapting the installer for v4.

How the scenery was made has little effect on the impact of dynamic lights: see this post here on our forum, with a test made with 3 different sceneries, using the P3D SDK, the FSX SDK and the FS8 SDK:

The DL impact is the same, and it's very low, for all of them, but once you crank up AA and Resolution, it affects ALL of them quite a bit, and by the SAME amount, even if they were made in very different ways and different SDKs.

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Obviously, dynamic lighting is only acceptable if you have a very high-end graphics card and low AA settings. On my system, the frame rates in the PMDG go from 45 to 25-30, in the FSL labs from 30 to 17-20. And this is with 2xMSAA. I tested it on the default airport, so no excuse about airports compiled for FSX.

Unfortunately, without dynamic lighting, there is absolutely no landing light. So P3D is currently day-time-only for me, at least when flying the FSL. Every new version brings a new problem. But P3D is already under pressure from several competitors. Good frame rates were one of the reasons to still keep it.

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